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by koma113
Which C++ library is prefect in solving non-linear set of equations with complex roots?
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| Hi I am developing a small kinetic Monte Carlo code to study atomic evolutions in a material and need to solve several linear and non-linear equations with a hi... |
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Jan 29, 2018 at 9:38pm
[4 replies] Last: or you could take the =0 away and try to see if you can solve them to ... (by jonnin)
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by afedorov
De-referencing of heap object - is there a leak?
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| Is this code safe in terms of memory leaks? And if yes, why? class A { int value; public: A(int value) : value(value) {} virtual ~A() { ... |
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Jan 29, 2018 at 4:27pm
[2 replies] Last: to be fair, simply making getA return the correct pointer type fixes i... (by Cubbi)
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| Need to Delete letters in array that are repeated, having trouble with function |
| SO I'm creating a function that takes in a char array to make a 10 letter "word". Then, I need to delete any repeated letters and return it. How would you go ab... |
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Jan 29, 2018 at 3:47pm
[4 replies] Last: #include <iostream> #include <algorithm> #include <set> using namespa... (by lastchance)
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by cryomick
Eclipse program crashing when connecting to MySQL Server
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| I am writing a simple program in Eclipse CDT to connect to a MySQL Server hosted locally. I have ensured the server is running. The code I am trying to execute ... |
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Jan 29, 2018 at 8:54am
[2 replies] Last: I have checked this for the driver variable and it is not a null ptr. ... (by cryomick)
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by afedorov
Object that is passed by reference isn't updated from original reference
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| Here is the code that confuses me #include <iostream> class A { int value=10; public: void setValue(int value) { A::value = value; } ... |
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Jan 29, 2018 at 5:35am
[5 replies] Last: Thank you for this informative discussion @afedorov and @JLBorges. (by kindgnice)
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by halfs
How long should it take a mid-level C++ programmer to write a TicTacToe program?
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| Some jobs require a variety of skills. If I am tested in an interview to write a TicTacToe program with some online website platform, how long should it take? ... |
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Jan 29, 2018 at 4:43am
[3 replies] Last: > If I am tested in an interview to write a TicTacToe program with som... (by JLBorges)
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by xfbs
C++ Iterators what am I doing wrong
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| Dear Members, I have some issues with the C++ iterators. Coming from some other languages, I am used to syntax like: let numbers = vec![2, 3, 4, 5, 6]; let s... |
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Jan 29, 2018 at 2:01am
[8 replies] Last: One big advantage of these iterator adaptors is that it reduces the nu... (by mbozzi)
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by kada17
Segmentation fault when trying to sort strings from a text file.
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| I am trying to make a function that takes strings from a file as an argument and sorts them using another function. What happens is that the function looks at t... |
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Jan 28, 2018 at 7:20pm
[4 replies] Last: Actually, it was a silly mistake on my part. I have fixed the problem ... (by kada17)
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by sonar87
Infix to postfix expression conversion
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| https://i.imgur.com/qyTSQ3X.png Link have code and bad out put pic. ( and ) seem mess things up and not sure how else to handle. Any help appreciated. |
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Jan 28, 2018 at 5:49pm
[1 reply] : I don't understand why you take a picture of the code instead of posti... (by Ganado)
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by Rafiz
Mother-Class to controll objects, inheritance problem.
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| I want to ask for "rightness" of some idea. Actualy I already used it. While learning SDL I made set of methods, and vector to ensure at any point I can delete ... |
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Jan 28, 2018 at 5:39pm
[5 replies] Last: Oh, I see. Didn't realize the thing about <cstddef>. But I am still on... (by Ganado)
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by kindgnice
A code about calling, initializing vectors and classes
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| Hello professionals, I am currently reading some articles about vectors and I came across to this code: template<typename T> class Vec3 { public: ... |
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Jan 28, 2018 at 2:57pm
[16 replies] Last: Thank you very much @JLBorges, @Peter87, @dhayden for always sharing y... (by kindgnice)
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by afedorov
Delete pointer of a class with pointer variables
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| What will happen when I execute following program? class A { int value; public: A(int value) : value(value) {} }; class B { A *a; public: B(... |
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Jan 28, 2018 at 2:32pm
[4 replies] Last: There is no separate memory allocation or deallocation for non-static... (by dhayden)
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by jasongog24
Converting a Greek string of letters to all lower case
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| So, I am trying to code a console program in Greek, and since I want to make the input non case sensitive, I wanted to create a function that converts all Greek... |
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Jan 28, 2018 at 12:55pm
[no replies]
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by eraggo
Minesweeper done in main() using SDL2
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| I was having fun time challenging myself to do minesweeper game yesterday and today with SDL2 and having every piece of code in main(). Here is result. (OK; Th... |
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Jan 28, 2018 at 11:44am
[no replies]
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by NG99
c++ problem 2
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| #include<iostream> #include<iomanip> using namespace std; int main() { int x=2; if(x=0) cout<<"x is 0"; else if (x=1) cout<<"x is 1"; else if(x=... |
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Jan 28, 2018 at 6:15am
[3 replies] Last: thank you. i understand (by NG99)
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by NG99
c++ problem
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| #include<iostream> #include<iomanip> using namespace std; int main() { int i =8,x=3; switch (i % 2 ? 0:1) { case 0: x/=2; case 1: x+=3; ... |
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Jan 28, 2018 at 6:10am
[3 replies] Last: thank you your explanation. i understand. (by NG99)
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by jono ava
Limited attempts error?
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| #include <iostream> #include <string> int main() { int number = 1232; int number2 = 2143; int numb; int attempts = 0; ... |
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Jan 27, 2018 at 7:36am
[4 replies] Last: I just said edit your post instead of double posting. I'm not sure ... (by Ganado)
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by JUAN DENT
Attempting to define 2 different default constructors depending on template type
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| Hi, I want to define 2 default constructors one for each type of the template parameter CharT with the following code: template<typename CharT> class ... |
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Jan 27, 2018 at 2:53am
[5 replies] Last: > if in each instantiation only one of the 2 functions would be instan... (by JLBorges)
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by CodeGoldden
C++ for beginner
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| Hi all ....new here and new to c++. New like now learning everything ..just completed the hello world...doing some variables and strings now. I am doing self ta... |
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Jan 27, 2018 at 1:08am
[1 reply] : welcome! This isn't much of a social site, more of just a Q & A board.... (by jonnin)
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by jono ava
C++ Btcn help
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| hey guys, I was wondering if anyone knew how to write a simple programme on bitcoin and how it works, such as hashes, Blockchain, transactions, private keys a... |
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Jan 27, 2018 at 12:13am
[11 replies] Last: They are different, but nonetheless you can compare them in their appl... (by Ganado)
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